body {
    outline: 1px solid gray;
}
div {
    margin: 0 30px;
}

h2 {
    text-align: center;
}
.zy::before{
    content: "摘要:";
    color: red;

}
.zy{
    font-size: 12px;
    color: royalblue;
    line-height: 2;
}

.wz {
    text-indent: 2em;
    line-height: 1.5;
}

.bottom {
    text-indent: 2em;
    font-size: 8px;
    color: gray;
    line-height: 2;
}